#include <iostream>
using namespace std;
int main ()
{
char grade ;
cout << " take one from this ( A , B, C, D, F) ";
cin >> grade;
switch(grade)
{
case 'A' :
cout << "Excellent!" << endl;
break;
case 'B' :
cout << "Well done" << endl;
break;
case 'C' :
cout << "done" << endl;
break;
case 'D' :
cout << "You passed" << endl;
break;
case 'F' :
cout << "Better try again" << endl;
break;
default :
cout << "Invalid grade" << endl;
}
cout << "Your grade is " << grade << endl;
return 0;
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int num1, num2, num3, num4, num5; 
    int product; 
 
    cout << "Enter five integers: "; 
    cin >> num1 >> num2 >> num3 >> num4 >> num5; 
 
    product = num1 * num2 * num3 * num4 * num5; 
 
    if (product > 0)  
 { 
        cout << "The product is positive." << endl; 
    }  
 else if (product < 0)  
 { 
        cout << "The product is negative." << endl; 
    } 
  else  
 { 
        cout << "The product is zero." << endl; 
    } 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int daynumber; 
 
    cout << " enter the day ( 1 -7 ) : "; 
    cin >> daynumber;
    switch (daynumber)
    {
    case 1:
    cout<< " sunday "<<endl;
    break;
    case 2:
    cout<< " monday "<<endl;
    break;
    case 3:
    cout<< " tuseday "<<endl;
    break;
    case 4:
    cout<< " wednesday "<<endl;
    break;
    case 5:
    cout<< " thursday "<<endl;
    break;
    case 6:
    cout<< " friday "<<endl;
    break;
    case 7:
    cout<< " saturday "<<endl;
    break;
    default:
    cout<<" not defined/true "<<endl;
    }
    
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int age;
    cout<<" enter your age : ";
    cin>>age;
    if ( age >= 18)
    {
    cout<< " you are eligible to vote "<<endl;
    }
    else
    {
    cout<< " you are not eligible to vote "<<endl;
    }
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    char firstName; 
 
    cout << "Enter a person's first initial (A/B/C): "; 
    cin >> firstName; 
 
    switch (firstName)  
 { 
        case 'A': 
        case 'a': 
            cout << "The age of person with first initial A is: 25" << endl; 
            break; 
        case 'B': 
        case 'b': 
            cout << "The age of person with first initial B is: 30" << endl; 
            break; 
        case 'C': 
        case 'c': 
            cout << "The age of person with first initial C is: 35" << endl; 
            break; 
        default: 
            cout << "Unknown person" << endl; 
    } 
 
    return 0; 
}

#include <iostream>
using namespace std;

int main() 
{
    float currency, currency1, ratio;
    cout<<" enter the your currency : ";
    cin>>currency1;
    cout<<" enter the different between the currencies : ";
    cin>>ratio;
    currency = currency1 / ratio;
    cout<<currency<<endl;
    
    return 0;
}

#include <iostream>
using namespace std;

int main() 
{
    float r, area;
    cout<<" enter the radius : ";
    cin>>r;
    area = r * r * 3.14;
    cout<<" the area is : "<<area<<endl;
    
    return 0;
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    char shape; 
    float side, length, width, area; 
 
    cout << "Enter the shape (S for square, R for rectangle): "; 
    cin >> shape; 
 
    switch (shape)  
 { 
        case 'S': 
        case 's': 
            cout << "Enter the side length of the square: "; 
            cin >> side; 
            area = side * side; 
            break; 
        case 'R': 
        case 'r': 
            cout << "Enter the length of the rectangle: "; 
            cin >> length; 
            cout << "Enter the width of the rectangle: "; 
            cin >> width; 
            area = length * width; 
            break; 
        default: 
            cout << "Invalid shape" << endl; 
    } 
 
    cout << "The area of the shape is: " << area << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main() { 
    int numSeats; 
 
    cout << "Enter the number of seats in the car: "; 
    cin >> numSeats; 
 
    if (numSeats == 4)  
 { 
        cout << "This is a Saloon car." << endl; 
    }  
 else if (numSeats == 7) { 
        cout << "This is an SUV." << endl; 
    }  
 else if (numSeats > 7 && numSeats < 100 )  
 { 
        cout << "This is a Bus." << endl; 
    }  
 else  
 { 
        cout << "Invalid number of seats." << endl; 
    } 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int A = 7, B = 14; 
 
    A = A << 2;
    B = B << 2;
     
    B = A % B; 
 
    cout << "After left shifting A by 2: " << A << endl;
    cout << "After left shifting B by 2: " << B << endl; 
    cout << "After using modulus operator on B: " << B << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int C = 8, D = 4;
    
    C = C >> 1;
    D = D >> 1;
     
    C &= D; 
 
    cout << "After right shifting C by 1: " << C << endl;
    cout << "After right shifting D by 1: " << D << endl; 
    cout << "After using bitwise AND operato on C,D : " << C << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int N = 11, M = 9;
    
    N /= M;
    N |= M;
     
    cout << "After using Divide AND assignment operator : " << N << endl; 
    cout << "After using Bitwise inclusive OR and assignment operator : " << N << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int X = 1, Y = 0;
    
    cout << "After using Logical AND operator X,Y: " << (X&&Y) << endl; 
    cout << "After using Logical NOT Operator on X : " << !X << endl;
    cout << "After using Logical NOT Operator on Y : " << !Y << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    char character;
    bool boolean;
    cout << "Size of char: " << sizeof(character) << " bytes" << endl; 
    cout << "Size of bool: " << sizeof(boolean) << " bytes" << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int integer; 
    float floatingPoint; 
 
    cout << "Size of int: " << sizeof(integer) << " bytes" << endl; 
    cout << "Size of float: " << sizeof(floatingPoint) << " bytes" << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    char character; 
    double doubleonly; 
 
    cout << "Size of int: " << sizeof(character) << " bytes" << endl; 
    cout << "Size of float: " << sizeof(doubleonly) << " bytes" << endl; 
 
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    int U = 15, V = 8;
    bool areEqual = (U == V);
    bool isGreaterOrEqual = ( U >= V);
    
    cout << "Are the values of U and V equal? " << areEqual << endl; 
    cout << "Is U greater than or equal to V? " << isGreaterOrEqual << endl;
     
    return 0; 
}

#include <iostream> 
using namespace std; 
 
int main()  
{ 
    for ( int i = 95; i <= 105; i++)
    {
    if ( i == 101)
    {
    continue;
    }
    cout<<i<<", ";
    }
    cout<<endl;
     
    return 0; 
}

#include <iostream> 
using namespace std;  
int main ()  
{  
int a = 95;  
do 
{  
if( a == 101)  
{  
a = a + 1;  
continue;  
}  
cout <<a<<", "; 
a = a + 1;  
}
while( a <= 105);  
return 0;  
}

#include <iostream> 
 
using namespace std; 
 
int main() 
{ 
    int a , fac; 
    cout << "enter the number (a) : "; 
    cin >> a; 
    fac = 1; 
    for ( int i =1; i <= a ; i++) 
    { 
        fac = fac * i; 
    } 
    cout << "the fac of the entered number is : "<<fac<<endl;
    // or write ( cout << " the fac of the entered number is \n" ;
    return 0; 
}

#include <iostream>

using namespace std;

// وظيفة لتبديل قيمتين
void swapNumbers(int &num1, int &num2) {
    int temp = num1;
    num1 = num2;
    num2 = temp;
}

int main() {
    int number1, number2;

    // الحصول على إدخال المستخدم
    cout << "Enter the first number: ";
    cin >> number1;

    cout << "Enter the second number: ";
    cin >> number2;

    // استخدام الوظيفة لتبديل الأرقام
    swapNumbers(number1, number2);

    // عرض النتيجة
    cout << "After swapping, the numbers are: " << number1 << " and " << number2 << endl;

    return 0;
}